Remove TabContents from AddBlankTabAt, kill AddBlankTab.

chrome/browser/extensions/extension_install_ui_default.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/extensions/extension_install_ui_default.h"
 
 #include "base/command_line.h"
 #include "base/utf_string_conversions.h"
 #include "chrome/browser/api/infobars/confirm_infobar_delegate.h"
 #include "chrome/browser/extensions/extension_install_prompt.h"
@@ skipping 115 matching lines @@
     ShowThemeInfoBar(previous_theme_id_, previous_using_native_theme_,
                      extension, profile_);
     return;
   }
 
   // Extensions aren't enabled by default in incognito so we confirm
   // the install in a normal window.
   Profile* current_profile = profile_->GetOriginalProfile();
   Browser* browser = browser::FindOrCreateTabbedBrowser(current_profile);
   if (browser->tab_count() == 0)
-    chrome::AddBlankTab(browser, true);
+    chrome::AddBlankTabAt(browser, -1, true);
   browser->window()->Show();
 
   bool use_bubble_for_apps = false;
 
 #if defined(TOOLKIT_VIEWS)
   CommandLine* cmdline = CommandLine::ForCurrentProcess();
   use_bubble_for_apps = (use_app_installed_bubble_ ||
                          cmdline->HasSwitch(switches::kAppsNewInstallBubble));
 #endif
 
@@ skipping 134 matching lines @@
     web_contents = browser->tab_strip_model()->GetActiveWebContents();
   return new ExtensionInstallPrompt(web_contents);
 }
 
 // static
 ExtensionInstallPrompt* ExtensionInstallUI::CreateInstallPromptWithProfile(
     Profile* profile) {
   Browser* browser = browser::FindLastActiveWithProfile(profile);
   return CreateInstallPromptWithBrowser(browser);
 }